Air Conditioning - Blower for Air handler does not turn off

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tramirez3
10-27-08, 01:37 AM
I have a Trane convertible air handler and I believe that the relay is stuck open on the blower. The blower runs continuously and can only be turned off at the breaker. Is the board an easy replacement for a diy'er?

gsistore
10-27-08, 04:49 PM
For those with some electrical background it's not that hard to replace it. To troubleshoot other problems will take more knowledge though. Hope this helps.

gsistore
HVAC Mech.
11-06-08, 10:48 AM
Don't jump to conclusions, it could be the tstat, shorted tstat wiring, stuck relay.Disconnect G at the board and see if it shuts off (when not calling for heating/cooling, fan 'auto') If it does, work your way back to the tstat.